mirror of
https://github.com/italicsjenga/valence.git
synced 2024-12-26 07:41:31 +11:00
781 lines
29 KiB
Rust
781 lines
29 KiB
Rust
//! Entities in a world.
|
|
|
|
use std::collections::hash_map::Entry;
|
|
use std::collections::HashMap;
|
|
use std::iter::FusedIterator;
|
|
use std::num::NonZeroU32;
|
|
|
|
use bitfield_struct::bitfield;
|
|
pub use data::{EntityKind, TrackedData};
|
|
use rayon::iter::ParallelIterator;
|
|
use uuid::Uuid;
|
|
use vek::{Aabb, Vec3};
|
|
|
|
use crate::config::Config;
|
|
use crate::protocol::packets::s2c::play::{
|
|
S2cPlayPacket, SetEntityMetadata, SpawnEntity, SpawnExperienceOrb, SpawnPlayer,
|
|
};
|
|
use crate::protocol::{ByteAngle, RawBytes, VarInt};
|
|
use crate::slab_versioned::{Key, VersionedSlab};
|
|
use crate::util::aabb_from_bottom_and_size;
|
|
use crate::world::WorldId;
|
|
use crate::STANDARD_TPS;
|
|
|
|
pub mod data;
|
|
pub mod types;
|
|
|
|
include!(concat!(env!("OUT_DIR"), "/entity_event.rs"));
|
|
|
|
/// A container for all [`Entity`]s on a server.
|
|
///
|
|
/// # Spawning Player Entities
|
|
///
|
|
/// [`Player`] entities are treated specially by the client. For the player
|
|
/// entity to be visible to clients, the player's UUID must be added to the
|
|
/// [`PlayerList`] _before_ being loaded by the client.
|
|
///
|
|
/// [`Player`]: crate::entity::data::Player
|
|
/// [`PlayerList`]: crate::player_list::PlayerList
|
|
pub struct Entities<C: Config> {
|
|
slab: VersionedSlab<Entity<C>>,
|
|
uuid_to_entity: HashMap<Uuid, EntityId>,
|
|
network_id_to_entity: HashMap<NonZeroU32, u32>,
|
|
}
|
|
|
|
impl<C: Config> Entities<C> {
|
|
pub(crate) fn new() -> Self {
|
|
Self {
|
|
slab: VersionedSlab::new(),
|
|
uuid_to_entity: HashMap::new(),
|
|
network_id_to_entity: HashMap::new(),
|
|
}
|
|
}
|
|
|
|
/// Spawns a new entity with a random UUID. A reference to the entity along
|
|
/// with its ID is returned.
|
|
pub fn insert(
|
|
&mut self,
|
|
kind: EntityKind,
|
|
state: C::EntityState,
|
|
) -> (EntityId, &mut Entity<C>) {
|
|
self.insert_with_uuid(kind, Uuid::from_bytes(rand::random()), state)
|
|
.expect("UUID collision")
|
|
}
|
|
|
|
/// Like [`Self::insert`], but requires specifying the new
|
|
/// entity's UUID.
|
|
///
|
|
/// The provided UUID must not conflict with an existing entity UUID. If it
|
|
/// does, `None` is returned and the entity is not spawned.
|
|
pub fn insert_with_uuid(
|
|
&mut self,
|
|
kind: EntityKind,
|
|
uuid: Uuid,
|
|
data: C::EntityState,
|
|
) -> Option<(EntityId, &mut Entity<C>)> {
|
|
match self.uuid_to_entity.entry(uuid) {
|
|
Entry::Occupied(_) => None,
|
|
Entry::Vacant(ve) => {
|
|
let (k, e) = self.slab.insert(Entity {
|
|
state: data,
|
|
variants: TrackedData::new(kind),
|
|
events: Vec::new(),
|
|
bits: EntityBits::new(),
|
|
world: WorldId::NULL,
|
|
new_position: Vec3::default(),
|
|
old_position: Vec3::default(),
|
|
yaw: 0.0,
|
|
pitch: 0.0,
|
|
head_yaw: 0.0,
|
|
velocity: Vec3::default(),
|
|
uuid,
|
|
});
|
|
|
|
// TODO check for overflowing version?
|
|
self.network_id_to_entity.insert(k.version(), k.index());
|
|
|
|
ve.insert(EntityId(k));
|
|
|
|
Some((EntityId(k), e))
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Removes an entity from the server.
|
|
///
|
|
/// If the given entity ID is valid, the entity's `EntityState` is returned
|
|
/// and the entity is deleted. Otherwise, `None` is returned and the
|
|
/// function has no effect.
|
|
pub fn remove(&mut self, entity: EntityId) -> Option<C::EntityState> {
|
|
self.slab.remove(entity.0).map(|e| {
|
|
self.uuid_to_entity
|
|
.remove(&e.uuid)
|
|
.expect("UUID should have been in UUID map");
|
|
|
|
self.network_id_to_entity
|
|
.remove(&entity.0.version())
|
|
.expect("network ID should have been in the network ID map");
|
|
|
|
e.state
|
|
})
|
|
}
|
|
|
|
/// Removes all entities from the server for which `f` returns `true`.
|
|
///
|
|
/// All entities are visited in an unspecified order.
|
|
pub fn retain(&mut self, mut f: impl FnMut(EntityId, &mut Entity<C>) -> bool) {
|
|
self.slab.retain(|k, v| {
|
|
if f(EntityId(k), v) {
|
|
true
|
|
} else {
|
|
self.uuid_to_entity
|
|
.remove(&v.uuid)
|
|
.expect("UUID should have been in UUID map");
|
|
|
|
self.network_id_to_entity
|
|
.remove(&k.version())
|
|
.expect("network ID should have been in the network ID map");
|
|
|
|
false
|
|
}
|
|
});
|
|
}
|
|
|
|
/// Returns the number of entities in this container.
|
|
pub fn len(&self) -> usize {
|
|
self.slab.len()
|
|
}
|
|
|
|
/// Returns `true` if there are no entities.
|
|
pub fn is_empty(&self) -> bool {
|
|
self.slab.len() == 0
|
|
}
|
|
|
|
/// Gets the [`EntityId`] of the entity with the given UUID in an efficient
|
|
/// manner.
|
|
///
|
|
/// If there is no entity with the UUID, `None` is returned.
|
|
pub fn get_with_uuid(&self, uuid: Uuid) -> Option<EntityId> {
|
|
self.uuid_to_entity.get(&uuid).cloned()
|
|
}
|
|
|
|
/// Gets a shared reference to the entity with the given [`EntityId`].
|
|
///
|
|
/// If the ID is invalid, `None` is returned.
|
|
pub fn get(&self, entity: EntityId) -> Option<&Entity<C>> {
|
|
self.slab.get(entity.0)
|
|
}
|
|
|
|
/// Gets an exclusive reference to the entity with the given [`EntityId`].
|
|
///
|
|
/// If the ID is invalid, `None` is returned.
|
|
pub fn get_mut(&mut self, entity: EntityId) -> Option<&mut Entity<C>> {
|
|
self.slab.get_mut(entity.0)
|
|
}
|
|
|
|
pub(crate) fn get_with_network_id(&self, network_id: i32) -> Option<EntityId> {
|
|
let version = NonZeroU32::new(network_id as u32)?;
|
|
let index = *self.network_id_to_entity.get(&version)?;
|
|
Some(EntityId(Key::new(index, version)))
|
|
}
|
|
|
|
/// Returns an iterator over all entities on the server in an unspecified
|
|
/// order.
|
|
pub fn iter(
|
|
&self,
|
|
) -> impl ExactSizeIterator<Item = (EntityId, &Entity<C>)> + FusedIterator + Clone + '_ {
|
|
self.slab.iter().map(|(k, v)| (EntityId(k), v))
|
|
}
|
|
|
|
/// Returns a mutable iterator over all entities on the server in an
|
|
/// unspecified order.
|
|
pub fn iter_mut(
|
|
&mut self,
|
|
) -> impl ExactSizeIterator<Item = (EntityId, &mut Entity<C>)> + FusedIterator + '_ {
|
|
self.slab.iter_mut().map(|(k, v)| (EntityId(k), v))
|
|
}
|
|
|
|
/// Returns a parallel iterator over all entities on the server in an
|
|
/// unspecified order.
|
|
pub fn par_iter(&self) -> impl ParallelIterator<Item = (EntityId, &Entity<C>)> + Clone + '_ {
|
|
self.slab.par_iter().map(|(k, v)| (EntityId(k), v))
|
|
}
|
|
|
|
/// Returns a parallel mutable iterator over all clients on the server in an
|
|
/// unspecified order.
|
|
pub fn par_iter_mut(
|
|
&mut self,
|
|
) -> impl ParallelIterator<Item = (EntityId, &mut Entity<C>)> + '_ {
|
|
self.slab.par_iter_mut().map(|(k, v)| (EntityId(k), v))
|
|
}
|
|
|
|
pub(crate) fn update(&mut self) {
|
|
for (_, e) in self.iter_mut() {
|
|
e.old_position = e.new_position;
|
|
e.variants.clear_modifications();
|
|
e.events.clear();
|
|
|
|
e.bits.set_yaw_or_pitch_modified(false);
|
|
e.bits.set_head_yaw_modified(false);
|
|
e.bits.set_velocity_modified(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// An identifier for an [`Entity`] on the server.
|
|
///
|
|
/// Entity IDs are either _valid_ or _invalid_. Valid entity IDs point to
|
|
/// entities that have not been deleted, while invalid IDs point to those that
|
|
/// have. Once an ID becomes invalid, it will never become valid again.
|
|
///
|
|
/// The [`Ord`] instance on this type is correct but otherwise unspecified. This
|
|
/// is useful for storing IDs in containers such as
|
|
/// [`BTreeMap`](std::collections::BTreeMap).
|
|
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default, Debug)]
|
|
pub struct EntityId(Key);
|
|
|
|
impl EntityId {
|
|
/// The value of the default entity ID which is always invalid.
|
|
pub const NULL: Self = Self(Key::NULL);
|
|
|
|
pub(crate) fn to_network_id(self) -> i32 {
|
|
self.0.version().get() as i32
|
|
}
|
|
}
|
|
|
|
/// Represents an entity on the server.
|
|
///
|
|
/// An entity is mostly anything in a world that isn't a block or client.
|
|
/// Entities include paintings, falling blocks, zombies, fireballs, and more.
|
|
///
|
|
/// Every entity has common state which is accessible directly from
|
|
/// this struct. This includes position, rotation, velocity, UUID, and hitbox.
|
|
/// To access data that is not common to every kind of entity, see
|
|
/// [`Self::data`].
|
|
pub struct Entity<C: Config> {
|
|
/// Custom data.
|
|
pub state: C::EntityState,
|
|
variants: TrackedData,
|
|
bits: EntityBits,
|
|
events: Vec<EntityEvent>,
|
|
world: WorldId,
|
|
new_position: Vec3<f64>,
|
|
old_position: Vec3<f64>,
|
|
yaw: f32,
|
|
pitch: f32,
|
|
head_yaw: f32,
|
|
velocity: Vec3<f32>,
|
|
uuid: Uuid,
|
|
}
|
|
|
|
#[bitfield(u8)]
|
|
pub(crate) struct EntityBits {
|
|
pub yaw_or_pitch_modified: bool,
|
|
pub head_yaw_modified: bool,
|
|
pub velocity_modified: bool,
|
|
pub on_ground: bool,
|
|
#[bits(4)]
|
|
_pad: u8,
|
|
}
|
|
|
|
impl<C: Config> Entity<C> {
|
|
pub(crate) fn bits(&self) -> EntityBits {
|
|
self.bits
|
|
}
|
|
|
|
/// Returns a shared reference to this entity's tracked data.
|
|
pub fn data(&self) -> &TrackedData {
|
|
&self.variants
|
|
}
|
|
|
|
/// Returns an exclusive reference to this entity's tracked data.
|
|
pub fn data_mut(&mut self) -> &mut TrackedData {
|
|
&mut self.variants
|
|
}
|
|
|
|
/// Gets the [`EntityKind`] of this entity.
|
|
pub fn kind(&self) -> EntityKind {
|
|
self.variants.kind()
|
|
}
|
|
|
|
/// Triggers an entity event for this entity.
|
|
pub fn push_event(&mut self, event: EntityEvent) {
|
|
self.events.push(event);
|
|
}
|
|
|
|
pub(crate) fn events(&self) -> &[EntityEvent] {
|
|
&self.events
|
|
}
|
|
|
|
/// Gets the [`WorldId`](crate::world::WorldId) of the world this entity is
|
|
/// located in.
|
|
///
|
|
/// By default, entities are located in
|
|
/// [`WorldId::NULL`](crate::world::WorldId::NULL).
|
|
pub fn world(&self) -> WorldId {
|
|
self.world
|
|
}
|
|
|
|
/// Sets the world this entity is located in.
|
|
pub fn set_world(&mut self, world: WorldId) {
|
|
self.world = world;
|
|
}
|
|
|
|
/// Gets the position of this entity in the world it inhabits.
|
|
///
|
|
/// The position of an entity is located on the botton of its
|
|
/// hitbox and not the center.
|
|
pub fn position(&self) -> Vec3<f64> {
|
|
self.new_position
|
|
}
|
|
|
|
/// Sets the position of this entity in the world it inhabits.
|
|
///
|
|
/// The position of an entity is located on the botton of its
|
|
/// hitbox and not the center.
|
|
pub fn set_position(&mut self, pos: impl Into<Vec3<f64>>) {
|
|
self.new_position = pos.into();
|
|
}
|
|
|
|
/// Returns the position of this entity as it existed at the end of the
|
|
/// previous tick.
|
|
pub(crate) fn old_position(&self) -> Vec3<f64> {
|
|
self.old_position
|
|
}
|
|
|
|
/// Gets the yaw of this entity in degrees.
|
|
pub fn yaw(&self) -> f32 {
|
|
self.yaw
|
|
}
|
|
|
|
/// Sets the yaw of this entity in degrees.
|
|
pub fn set_yaw(&mut self, yaw: f32) {
|
|
if self.yaw != yaw {
|
|
self.yaw = yaw;
|
|
self.bits.set_yaw_or_pitch_modified(true);
|
|
}
|
|
}
|
|
|
|
/// Gets the pitch of this entity in degrees.
|
|
pub fn pitch(&self) -> f32 {
|
|
self.pitch
|
|
}
|
|
|
|
/// Sets the pitch of this entity in degrees.
|
|
pub fn set_pitch(&mut self, pitch: f32) {
|
|
if self.pitch != pitch {
|
|
self.pitch = pitch;
|
|
self.bits.set_yaw_or_pitch_modified(true);
|
|
}
|
|
}
|
|
|
|
/// Gets the head yaw of this entity in degrees.
|
|
pub fn head_yaw(&self) -> f32 {
|
|
self.head_yaw
|
|
}
|
|
|
|
/// Sets the head yaw of this entity in degrees.
|
|
pub fn set_head_yaw(&mut self, head_yaw: f32) {
|
|
if self.head_yaw != head_yaw {
|
|
self.head_yaw = head_yaw;
|
|
self.bits.set_head_yaw_modified(true);
|
|
}
|
|
}
|
|
|
|
/// Gets the velocity of this entity in meters per second.
|
|
pub fn velocity(&self) -> Vec3<f32> {
|
|
self.velocity
|
|
}
|
|
|
|
/// Sets the velocity of this entity in meters per second.
|
|
pub fn set_velocity(&mut self, velocity: impl Into<Vec3<f32>>) {
|
|
let new_vel = velocity.into();
|
|
|
|
if self.velocity != new_vel {
|
|
self.velocity = new_vel;
|
|
self.bits.set_velocity_modified(true);
|
|
}
|
|
}
|
|
|
|
/// Gets the value of the "on ground" flag.
|
|
pub fn on_ground(&self) -> bool {
|
|
self.bits.on_ground()
|
|
}
|
|
|
|
/// Sets the value of the "on ground" flag.
|
|
pub fn set_on_ground(&mut self, on_ground: bool) {
|
|
self.bits.set_on_ground(on_ground);
|
|
}
|
|
|
|
/// Gets the UUID of this entity.
|
|
pub fn uuid(&self) -> Uuid {
|
|
self.uuid
|
|
}
|
|
|
|
/// Returns the hitbox of this entity.
|
|
///
|
|
/// The hitbox describes the space that an entity occupies. Clients interact
|
|
/// with this space to create an [interact event].
|
|
///
|
|
/// The hitbox of an entity is determined by its position, entity type, and
|
|
/// other state specific to that type.
|
|
///
|
|
/// [interact event]: crate::client::ClientEvent::InteractWithEntity
|
|
pub fn hitbox(&self) -> Aabb<f64> {
|
|
let dims = match &self.variants {
|
|
TrackedData::Allay(_) => [0.6, 0.35, 0.6],
|
|
TrackedData::ChestBoat(_) => [1.375, 0.5625, 1.375],
|
|
TrackedData::Frog(_) => [0.5, 0.5, 0.5],
|
|
TrackedData::Tadpole(_) => [0.4, 0.3, 0.4],
|
|
TrackedData::Warden(_) => [0.9, 2.9, 0.9],
|
|
TrackedData::AreaEffectCloud(e) => [
|
|
e.get_radius() as f64 * 2.0,
|
|
0.5,
|
|
e.get_radius() as f64 * 2.0,
|
|
],
|
|
TrackedData::ArmorStand(e) => {
|
|
if e.get_marker() {
|
|
[0.0, 0.0, 0.0]
|
|
} else if e.get_small() {
|
|
[0.5, 0.9875, 0.5]
|
|
} else {
|
|
[0.5, 1.975, 0.5]
|
|
}
|
|
}
|
|
TrackedData::Arrow(_) => [0.5, 0.5, 0.5],
|
|
TrackedData::Axolotl(_) => [1.3, 0.6, 1.3],
|
|
TrackedData::Bat(_) => [0.5, 0.9, 0.5],
|
|
TrackedData::Bee(_) => [0.7, 0.6, 0.7], // TODO: baby size?
|
|
TrackedData::Blaze(_) => [0.6, 1.8, 0.6],
|
|
TrackedData::Boat(_) => [1.375, 0.5625, 1.375],
|
|
TrackedData::Cat(_) => [0.6, 0.7, 0.6],
|
|
TrackedData::CaveSpider(_) => [0.7, 0.5, 0.7],
|
|
TrackedData::Chicken(_) => [0.4, 0.7, 0.4], // TODO: baby size?
|
|
TrackedData::Cod(_) => [0.5, 0.3, 0.5],
|
|
TrackedData::Cow(_) => [0.9, 1.4, 0.9], // TODO: baby size?
|
|
TrackedData::Creeper(_) => [0.6, 1.7, 0.6],
|
|
TrackedData::Dolphin(_) => [0.9, 0.6, 0.9],
|
|
TrackedData::Donkey(_) => [1.5, 1.39648, 1.5], // TODO: baby size?
|
|
TrackedData::DragonFireball(_) => [1.0, 1.0, 1.0],
|
|
TrackedData::Drowned(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
TrackedData::ElderGuardian(_) => [1.9975, 1.9975, 1.9975],
|
|
TrackedData::EndCrystal(_) => [2.0, 2.0, 2.0],
|
|
TrackedData::EnderDragon(_) => [16.0, 8.0, 16.0],
|
|
TrackedData::Enderman(_) => [0.6, 2.9, 0.6],
|
|
TrackedData::Endermite(_) => [0.4, 0.3, 0.4],
|
|
TrackedData::Evoker(_) => [0.6, 1.95, 0.6],
|
|
TrackedData::EvokerFangs(_) => [0.5, 0.8, 0.5],
|
|
TrackedData::ExperienceOrb(_) => [0.5, 0.5, 0.5],
|
|
TrackedData::EyeOfEnder(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::FallingBlock(_) => [0.98, 0.98, 0.98],
|
|
TrackedData::FireworkRocket(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::Fox(_) => [0.6, 0.7, 0.6], // TODO: baby size?
|
|
TrackedData::Ghast(_) => [4.0, 4.0, 4.0],
|
|
TrackedData::Giant(_) => [3.6, 12.0, 3.6],
|
|
TrackedData::GlowItemFrame(_) => todo!("account for rotation"),
|
|
TrackedData::GlowSquid(_) => [0.8, 0.8, 0.8],
|
|
TrackedData::Goat(_) => [1.3, 0.9, 1.3], // TODO: baby size?
|
|
TrackedData::Guardian(_) => [0.85, 0.85, 0.85],
|
|
TrackedData::Hoglin(_) => [1.39648, 1.4, 1.39648], // TODO: baby size?
|
|
TrackedData::Horse(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
|
|
TrackedData::Husk(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
TrackedData::Illusioner(_) => [0.6, 1.95, 0.6],
|
|
TrackedData::IronGolem(_) => [1.4, 2.7, 1.4],
|
|
TrackedData::Item(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::ItemFrame(_) => todo!("account for rotation"),
|
|
TrackedData::Fireball(_) => [1.0, 1.0, 1.0],
|
|
TrackedData::LeashKnot(_) => [0.375, 0.5, 0.375],
|
|
TrackedData::Lightning(_) => [0.0, 0.0, 0.0],
|
|
TrackedData::Llama(_) => [0.9, 1.87, 0.9], // TODO: baby size?
|
|
TrackedData::LlamaSpit(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::MagmaCube(e) => {
|
|
let s = e.get_slime_size() as f64 * 0.51000005;
|
|
[s, s, s]
|
|
}
|
|
TrackedData::Marker(_) => [0.0, 0.0, 0.0],
|
|
TrackedData::Minecart(_) => [0.98, 0.7, 0.98],
|
|
TrackedData::ChestMinecart(_) => [0.98, 0.7, 0.98],
|
|
TrackedData::CommandBlockMinecart(_) => [0.98, 0.7, 0.98],
|
|
TrackedData::FurnaceMinecart(_) => [0.98, 0.7, 0.98],
|
|
TrackedData::HopperMinecart(_) => [0.98, 0.7, 0.98],
|
|
TrackedData::SpawnerMinecart(_) => [0.98, 0.7, 0.98],
|
|
TrackedData::TntMinecart(_) => [0.98, 0.7, 0.98],
|
|
TrackedData::Mule(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
|
|
TrackedData::Mooshroom(_) => [0.9, 1.4, 0.9], // TODO: baby size?
|
|
TrackedData::Ocelot(_) => [0.6, 0.7, 0.6], // TODO: baby size?
|
|
TrackedData::Painting(_) => todo!("account for rotation and type"),
|
|
TrackedData::Panda(_) => [0.6, 0.7, 0.6], // TODO: baby size?
|
|
TrackedData::Parrot(_) => [0.5, 0.9, 0.5],
|
|
TrackedData::Phantom(_) => [0.9, 0.5, 0.9],
|
|
TrackedData::Pig(_) => [0.9, 0.9, 0.9], // TODO: baby size?
|
|
TrackedData::Piglin(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
TrackedData::PiglinBrute(_) => [0.6, 1.95, 0.6],
|
|
TrackedData::Pillager(_) => [0.6, 1.95, 0.6],
|
|
TrackedData::PolarBear(_) => [1.4, 1.4, 1.4], // TODO: baby size?
|
|
TrackedData::Tnt(_) => [0.98, 0.98, 0.98],
|
|
TrackedData::Pufferfish(_) => [0.7, 0.7, 0.7],
|
|
TrackedData::Rabbit(_) => [0.4, 0.5, 0.4], // TODO: baby size?
|
|
TrackedData::Ravager(_) => [1.95, 2.2, 1.95],
|
|
TrackedData::Salmon(_) => [0.7, 0.4, 0.7],
|
|
TrackedData::Sheep(_) => [0.9, 1.3, 0.9], // TODO: baby size?
|
|
TrackedData::Shulker(_) => [1.0, 1.0, 1.0], // TODO: how is height calculated?
|
|
TrackedData::ShulkerBullet(_) => [0.3125, 0.3125, 0.3125],
|
|
TrackedData::Silverfish(_) => [0.4, 0.3, 0.4],
|
|
TrackedData::Skeleton(_) => [0.6, 1.99, 0.6],
|
|
TrackedData::SkeletonHorse(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
|
|
TrackedData::Slime(e) => {
|
|
let s = 0.51000005 * e.get_slime_size() as f64;
|
|
[s, s, s]
|
|
}
|
|
TrackedData::SmallFireball(_) => [0.3125, 0.3125, 0.3125],
|
|
TrackedData::SnowGolem(_) => [0.7, 1.9, 0.7],
|
|
TrackedData::Snowball(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::SpectralArrow(_) => [0.5, 0.5, 0.5],
|
|
TrackedData::Spider(_) => [1.4, 0.9, 1.4],
|
|
TrackedData::Squid(_) => [0.8, 0.8, 0.8],
|
|
TrackedData::Stray(_) => [0.6, 1.99, 0.6],
|
|
TrackedData::Strider(_) => [0.9, 1.7, 0.9], // TODO: baby size?
|
|
TrackedData::Egg(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::EnderPearl(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::ExperienceBottle(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::Potion(_) => [0.25, 0.25, 0.25],
|
|
TrackedData::Trident(_) => [0.5, 0.5, 0.5],
|
|
TrackedData::TraderLlama(_) => [0.9, 1.87, 0.9],
|
|
TrackedData::TropicalFish(_) => [0.5, 0.4, 0.5],
|
|
TrackedData::Turtle(_) => [1.2, 0.4, 1.2], // TODO: baby size?
|
|
TrackedData::Vex(_) => [0.4, 0.8, 0.4],
|
|
TrackedData::Villager(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
TrackedData::Vindicator(_) => [0.6, 1.95, 0.6],
|
|
TrackedData::WanderingTrader(_) => [0.6, 1.95, 0.6],
|
|
TrackedData::Witch(_) => [0.6, 1.95, 0.6],
|
|
TrackedData::Wither(_) => [0.9, 3.5, 0.9],
|
|
TrackedData::WitherSkeleton(_) => [0.7, 2.4, 0.7],
|
|
TrackedData::WitherSkull(_) => [0.3125, 0.3125, 0.3125],
|
|
TrackedData::Wolf(_) => [0.6, 0.85, 0.6], // TODO: baby size?
|
|
TrackedData::Zoglin(_) => [1.39648, 1.4, 1.39648], // TODO: baby size?
|
|
TrackedData::Zombie(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
TrackedData::ZombieHorse(_) => [1.39648, 1.6, 1.39648], // TODO: baby size?
|
|
TrackedData::ZombieVillager(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
TrackedData::ZombifiedPiglin(_) => [0.6, 1.95, 0.6], // TODO: baby size?
|
|
TrackedData::Player(_) => [0.6, 1.8, 0.6], // TODO: changes depending on the pose.
|
|
TrackedData::FishingBobber(_) => [0.25, 0.25, 0.25],
|
|
};
|
|
|
|
aabb_from_bottom_and_size(self.new_position, dims.into())
|
|
}
|
|
|
|
/// Gets the tracked data packet to send to clients after this entity has
|
|
/// been spawned.
|
|
///
|
|
/// Returns `None` if all the tracked data is at its default values.
|
|
pub(crate) fn initial_tracked_data_packet(
|
|
&self,
|
|
this_id: EntityId,
|
|
) -> Option<SetEntityMetadata> {
|
|
self.variants
|
|
.initial_tracked_data()
|
|
.map(|meta| SetEntityMetadata {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
metadata: RawBytes(meta),
|
|
})
|
|
}
|
|
|
|
/// Gets the tracked data packet to send to clients when the entity is
|
|
/// modified.
|
|
///
|
|
/// Returns `None` if this entity's tracked data has not been modified.
|
|
pub(crate) fn updated_tracked_data_packet(
|
|
&self,
|
|
this_id: EntityId,
|
|
) -> Option<SetEntityMetadata> {
|
|
self.variants
|
|
.updated_tracked_data()
|
|
.map(|meta| SetEntityMetadata {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
metadata: RawBytes(meta),
|
|
})
|
|
}
|
|
|
|
pub(crate) fn spawn_packet(&self, this_id: EntityId) -> Option<EntitySpawnPacket> {
|
|
match &self.variants {
|
|
TrackedData::Marker(_) => None,
|
|
TrackedData::ExperienceOrb(_) => {
|
|
Some(EntitySpawnPacket::ExperienceOrb(SpawnExperienceOrb {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
position: self.new_position,
|
|
count: 0, // TODO
|
|
}))
|
|
}
|
|
TrackedData::Player(_) => Some(EntitySpawnPacket::Player(SpawnPlayer {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
player_uuid: self.uuid,
|
|
position: self.new_position,
|
|
yaw: ByteAngle::from_degrees(self.yaw),
|
|
pitch: ByteAngle::from_degrees(self.pitch),
|
|
})),
|
|
_ => Some(EntitySpawnPacket::Entity(SpawnEntity {
|
|
entity_id: VarInt(this_id.to_network_id()),
|
|
object_uuid: self.uuid,
|
|
kind: VarInt(self.kind() as i32),
|
|
position: self.new_position,
|
|
pitch: ByteAngle::from_degrees(self.pitch),
|
|
yaw: ByteAngle::from_degrees(self.yaw),
|
|
head_yaw: ByteAngle::from_degrees(self.head_yaw),
|
|
data: VarInt(1), // TODO
|
|
velocity: velocity_to_packet_units(self.velocity),
|
|
})),
|
|
}
|
|
}
|
|
}
|
|
|
|
pub(crate) fn velocity_to_packet_units(vel: Vec3<f32>) -> Vec3<i16> {
|
|
// The saturating cast to i16 is desirable.
|
|
(8000.0 / STANDARD_TPS as f32 * vel).as_()
|
|
}
|
|
|
|
pub(crate) enum EntitySpawnPacket {
|
|
Entity(SpawnEntity),
|
|
ExperienceOrb(SpawnExperienceOrb),
|
|
Player(SpawnPlayer),
|
|
}
|
|
|
|
impl From<EntitySpawnPacket> for S2cPlayPacket {
|
|
fn from(pkt: EntitySpawnPacket) -> Self {
|
|
match pkt {
|
|
EntitySpawnPacket::Entity(pkt) => pkt.into(),
|
|
EntitySpawnPacket::ExperienceOrb(pkt) => pkt.into(),
|
|
EntitySpawnPacket::Player(pkt) => pkt.into(),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use std::num::NonZeroU32;
|
|
|
|
use uuid::Uuid;
|
|
|
|
use super::{Entities, EntityId, EntityKind};
|
|
use crate::config::Config;
|
|
use crate::server::Server;
|
|
use crate::slab_versioned::Key;
|
|
|
|
/// Created for the sole purpose of use during unit tests.
|
|
struct MockConfig;
|
|
impl Config for MockConfig {
|
|
type ServerState = ();
|
|
type ClientState = ();
|
|
type EntityState = u8; // Just for identification purposes
|
|
type WorldState = ();
|
|
type ChunkState = ();
|
|
type PlayerListState = ();
|
|
|
|
fn max_connections(&self) -> usize {
|
|
10
|
|
}
|
|
fn update(&self, _server: &mut Server<Self>) {}
|
|
}
|
|
|
|
#[test]
|
|
fn entities_has_valid_new_state() {
|
|
let mut entities: Entities<MockConfig> = Entities::new();
|
|
let network_id: i32 = 8675309;
|
|
let entity_id = EntityId(Key::new(
|
|
202298,
|
|
NonZeroU32::new(network_id as u32).expect("Value given should never be zero!"),
|
|
));
|
|
let uuid = Uuid::from_bytes([2; 16]);
|
|
assert!(entities.is_empty());
|
|
assert!(entities.get(entity_id).is_none());
|
|
assert!(entities.get_mut(entity_id).is_none());
|
|
assert!(entities.get_with_uuid(uuid).is_none());
|
|
assert!(entities.get_with_network_id(network_id).is_none());
|
|
}
|
|
|
|
#[test]
|
|
fn entities_can_be_set_and_get() {
|
|
let mut entities: Entities<MockConfig> = Entities::new();
|
|
assert!(entities.is_empty());
|
|
let (player_id, player_entity) = entities.insert(EntityKind::Player, 1);
|
|
assert_eq!(player_entity.state, 1);
|
|
assert_eq!(entities.get(player_id).unwrap().state, 1);
|
|
let mut_player_entity = entities
|
|
.get_mut(player_id)
|
|
.expect("Failed to get mutable reference");
|
|
mut_player_entity.state = 100;
|
|
assert_eq!(entities.get(player_id).unwrap().state, 100);
|
|
assert_eq!(entities.len(), 1);
|
|
}
|
|
|
|
#[test]
|
|
fn entities_can_be_set_and_get_with_uuid() {
|
|
let mut entities: Entities<MockConfig> = Entities::new();
|
|
let uuid = Uuid::from_bytes([2; 16]);
|
|
assert!(entities.is_empty());
|
|
let (zombie_id, zombie_entity) = entities
|
|
.insert_with_uuid(EntityKind::Zombie, uuid, 1)
|
|
.expect("Unexpected Uuid collision when inserting to an empty collection");
|
|
assert_eq!(zombie_entity.state, 1);
|
|
let maybe_zombie = entities
|
|
.get_with_uuid(uuid)
|
|
.expect("Uuid lookup failed on item already added to this collection");
|
|
assert_eq!(zombie_id, maybe_zombie);
|
|
assert_eq!(entities.len(), 1);
|
|
}
|
|
|
|
#[test]
|
|
fn entities_can_be_set_and_get_with_network_id() {
|
|
let mut entities: Entities<MockConfig> = Entities::new();
|
|
assert!(entities.is_empty());
|
|
let (boat_id, boat_entity) = entities.insert(EntityKind::Boat, 12);
|
|
assert_eq!(boat_entity.state, 12);
|
|
let (cat_id, cat_entity) = entities.insert(EntityKind::Cat, 75);
|
|
assert_eq!(cat_entity.state, 75);
|
|
let maybe_boat_id = entities
|
|
.get_with_network_id(boat_id.0.version.get() as i32)
|
|
.expect("Network id lookup failed on item already added to this collection");
|
|
let maybe_boat = entities
|
|
.get(maybe_boat_id)
|
|
.expect("Failed to look up item already added to collection");
|
|
assert_eq!(maybe_boat.state, 12);
|
|
let maybe_cat_id = entities
|
|
.get_with_network_id(cat_id.0.version.get() as i32)
|
|
.expect("Network id lookup failed on item already added to this collection");
|
|
let maybe_cat = entities
|
|
.get(maybe_cat_id)
|
|
.expect("Failed to look up item already added to collection");
|
|
assert_eq!(maybe_cat.state, 75);
|
|
assert_eq!(entities.len(), 2);
|
|
}
|
|
|
|
#[test]
|
|
fn entities_can_be_removed() {
|
|
let mut entities: Entities<MockConfig> = Entities::new();
|
|
assert!(entities.is_empty());
|
|
let (player_id, _) = entities.insert(EntityKind::Player, 1);
|
|
let player_state = entities
|
|
.remove(player_id)
|
|
.expect("Failed to remove an item from the collection");
|
|
assert_eq!(player_state, 1);
|
|
}
|
|
|
|
#[test]
|
|
fn entities_can_be_retained() {
|
|
let mut entities: Entities<MockConfig> = Entities::new();
|
|
assert!(entities.is_empty());
|
|
let (blaze_id, _) = entities.insert(EntityKind::Blaze, 10);
|
|
let (fox_id, _) = entities.insert(EntityKind::Fox, 110);
|
|
let (turtle_id, _) = entities.insert(EntityKind::Turtle, 20);
|
|
let (goat_id, _) = entities.insert(EntityKind::Goat, 120);
|
|
let (horse_id, _) = entities.insert(EntityKind::Horse, 30);
|
|
assert_eq!(entities.len(), 5);
|
|
entities.retain(|_id, entity| entity.state > 100);
|
|
assert_eq!(entities.len(), 2);
|
|
assert!(entities.get(fox_id).is_some());
|
|
assert!(entities.get(goat_id).is_some());
|
|
assert!(entities.get(blaze_id).is_none());
|
|
assert!(entities.get(turtle_id).is_none());
|
|
assert!(entities.get(horse_id).is_none());
|
|
}
|
|
}
|